﻿// Copyright (c) 2017 Ratish Philip 
//
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal 
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is 
// furnished to do so, subject to the following conditions: 
// 
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software. 
// 
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE. 
//
// This file is part of the WPFSpark project: https://github.com/ratishphilip/wpfspark
//
// WPFSpark v1.3.1
// 

using System;
using System.Linq;
using System.Windows;
using System.Windows.Data;

namespace WPFSpark
{
    public class ContentVisibilityConverter : IValueConverter
    {
        #region Constants

        private const string ENUM_SEPARATOR = "|";

        #endregion

        #region IValueConverter Members

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            var vmValue = value.ToString();
            var parValue = parameter as string;

            if (String.IsNullOrWhiteSpace(parValue))
                return Visibility.Collapsed;

            var parSplitValues = parValue.Split(new[] { ENUM_SEPARATOR }, StringSplitOptions.RemoveEmptyEntries);
            var matchValue = parSplitValues.FirstOrDefault(x => x.Trim() == vmValue);

            return (matchValue != null) ? Visibility.Visible : Visibility.Collapsed;
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return null;
        }

        #endregion
    }
}
